EP0777061B1 - Brake disc - Google Patents

Brake disc Download PDF

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Publication number
EP0777061B1
EP0777061B1 EP96117044A EP96117044A EP0777061B1 EP 0777061 B1 EP0777061 B1 EP 0777061B1 EP 96117044 A EP96117044 A EP 96117044A EP 96117044 A EP96117044 A EP 96117044A EP 0777061 B1 EP0777061 B1 EP 0777061B1
Authority
EP
European Patent Office
Prior art keywords
friction rings
bores
brake disk
pins
end parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96117044A
Other languages
German (de)
French (fr)
Other versions
EP0777061A1 (en
Inventor
Walter Krenkel
Richard KOCHENDÖRFER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsches Zentrum fuer Luft und Raumfahrt eV
Original Assignee
Deutsches Zentrum fuer Luft und Raumfahrt eV
Deutsche Forschungs und Versuchsanstalt fuer Luft und Raumfahrt eV DFVLR
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19543799A external-priority patent/DE19543799A1/en
Application filed by Deutsches Zentrum fuer Luft und Raumfahrt eV, Deutsche Forschungs und Versuchsanstalt fuer Luft und Raumfahrt eV DFVLR filed Critical Deutsches Zentrum fuer Luft und Raumfahrt eV
Publication of EP0777061A1 publication Critical patent/EP0777061A1/en
Application granted granted Critical
Publication of EP0777061B1 publication Critical patent/EP0777061B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/128—Discs; Drums for disc brakes characterised by means for cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
    • F16D65/126—Discs; Drums for disc brakes characterised by the material used for the disc body the material being of low mechanical strength, e.g. carbon, beryllium; Torque transmitting members therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/132—Structure layered
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1344—Connection permanent, e.g. by casting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples

Definitions

  • the invention relates to a brake disc made of a carbon material or carbon.
  • Brake disks are known from DE 32 24 192 A1 and from EP 0 374158 B1, which are in one piece are formed and consist of a carbon material or carbon.
  • the FR-A-2 620 499 shows a brake disc for disc brakes of vehicles made up of one Material consists of the group of carbons.
  • This brake disc is constructed in three parts: on one Beams are arranged on both sides of non-load-bearing friction rings as wear layers.
  • Bolts are provided, which are held in axially arranged, through holes by clamping. If the friction rings wear out, they will be replaced by new ones. to attach this new friction rings are drilled through holes and then new bolts pressed.
  • JP-A-58-013 237 a brake disc is shown, in which two supporting friction rings are arranged on a star-shaped carrier.
  • the Friction rings To connect the Friction rings with arms of the carrier are provided bolts with a thickened middle part, the Middle part is received by a corresponding hole in the arms and the tapered Ends are riveted into holes in the friction rings.
  • the thickened middle part of the bolts acts as Spacer between the friction rings.
  • the object of the invention is to provide an improved and simpler connection option for the two friction rings to create a brake disc.
  • the main advantages achieved with the invention are that the two friction rings instead of means a connection via the ribs, as after the main patent, now only via cylindrical pins get connected. These pins are connected to the friction rings in a known manner for example in a high vacuum oven or the like, in which an inseparable connection between the Friction rings and the pin is made.
  • the pins are provided according to the invention with a thickened middle part and tapered end parts protrude into the holes of the two friction rings. These pins fix the two friction rings to each other.
  • the thickened middle part supports the friction rings on a shoulder, so that there is an equal air gap between the Friction rings forms.
  • the holes for receiving the end parts of the spacers Blind holes or through holes, but also a combination of these holes is possible.
  • An internally ventilated brake disc 1 comprises two friction rings 2, 3 and a pot.
  • the Friction rings 2, 3 have through holes 7.
  • the two friction rings 2, 3 are connected via pins 30 and / or 30a. These are preferably cylindrical and have a thickened central part 31 and end parts 32; 32a, which are smaller in diameter than the central part 31 are trained.
  • the end parts 32 protrude into bores in the friction rings 2, 3, which act as blind bores 35 or can be designed as through holes 34. It can also be one Combination of blind holes 35 and through holes 34 can be selected, what is shown in more detail in Fig. 3, for example.
  • a shoulder 33 is formed between the middle part 31 and the end parts 32, on which the friction rings 2, 3 can be supported.
  • the pins 30, 30a are placed in the brake disc 1 in such a way that there is virtually result in radially extending channels marked by the central part 31 of the pin 30 become.
  • the friction rings 2, 3 can also be on the inside Have half ribs 40 which, depending on the requirements with regard to strength, Vibration behavior can be placed.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Description

Die Erfindung bezieht sich auf eine Bremsscheibe aus einem Kohlenstoffmaterial bzw. aus Karbon.The invention relates to a brake disc made of a carbon material or carbon.

Aus der DE 32 24 192 A1 sowie aus der EP 0 374158 B1 sind Bremsscheiben bekannt, die einteilig ausgebildet sind und aus einem Kohlenstoffmaterial bzw. aus Karbon bestehen.Brake disks are known from DE 32 24 192 A1 and from EP 0 374158 B1, which are in one piece are formed and consist of a carbon material or carbon.

Die FR-A-2 620 499 zeigt eine Bremsscheibe für Scheibenbremsen von Fahrzeugen, die aus einem Werkstoff aus der Gruppe der Kohlenstoffe besteht. Diese Bremsscheibe ist dreiteilig aufgebaut: auf einem Träger sind beiderseits nicht tragende Reibringe als Verschleißschichten angeordnet. Zur Verbindung der Reibringe mit dem Träger sind ebenfalls aus einem Werkstoff aus der Gruppe der Kohlenstoffe bestehende Bolzen vorgesehen, die in axial angeordneten, durchgehenden Bohrungen durch Klemmung gehalten sind. Bei einem Verschleiß der Reibringe werden diese durch neue Reibringe ersetzt; zur Befestigung dieser neuen Reibringe werden durchgehende Bohrungen neu eingebracht und anschließend neue Bolzen eingepreßt.The FR-A-2 620 499 shows a brake disc for disc brakes of vehicles made up of one Material consists of the group of carbons. This brake disc is constructed in three parts: on one Beams are arranged on both sides of non-load-bearing friction rings as wear layers. To connect the Friction rings with the carrier are also made of a material from the group of carbons Bolts are provided, which are held in axially arranged, through holes by clamping. If the friction rings wear out, they will be replaced by new ones. to attach this new friction rings are drilled through holes and then new bolts pressed.

In Patent Abstracts of Japan, Vol. 007, No. 089 (M-207), JP-A-58-013 237 ist eine Bremsscheibe gezeigt, bei der auf einem sternförmigen Träger zwei tragende Reibringe angeordnet sind. Zur Verbindung der Reibringe mit Armen des Trägers sind Bolzen mit einem verdickten Mittelteil vorgesehen, wobei das Mittelteil jeweils von einer korrespondierenden Bohrung in den Armen aufgenommen ist und die verjüngten Enden in Bohrungen in den Reibringen vernietet sind. Zur weiteren Abstützung sind zwischen den Armein weitere Bolzen zwischen den Reibringen angeordnet; hier wirkt das verdickte Mittelteil der Bolzen als Distanzstück zwischen den Reibringen.In Patent Abstracts of Japan, Vol. 007, No. 089 (M-207), JP-A-58-013 237 a brake disc is shown, in which two supporting friction rings are arranged on a star-shaped carrier. To connect the Friction rings with arms of the carrier are provided bolts with a thickened middle part, the Middle part is received by a corresponding hole in the arms and the tapered Ends are riveted into holes in the friction rings. For further support are between the arms further bolts arranged between the friction rings; here the thickened middle part of the bolts acts as Spacer between the friction rings.

Schließlich ist in der nicht vorveröffentlichten DE-A-44 45 226 eine Bremsscheibe aus einem Kohlenstoff bzw. einem kohlenstoffaserverstärkten Kunststoff bzw. Carbon beschrieben, bei der zwei Reibringe über zwischen innenseits der Reibringe angeordnete Rippen mittels eines Verfahrens miteinander verbindbar sind.Finally, in the unpublished DE-A-44 45 226 is a brake disc made of a carbon or a carbon fiber reinforced plastic or carbon described in which two friction rings over ribs arranged between the inside of the friction rings can be connected to one another by means of a method are.

Aufgabe der Erfindung ist es, eine verbesserte und einfachere Verbindungsmöglichkeit der beiden Reibringe einer Bremsscheibe zu schaffen.The object of the invention is to provide an improved and simpler connection option for the two friction rings to create a brake disc.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst Weitere vorteilhafte Merkmale beinhalten die Unteransprüche. This object is achieved by the characterizing features of claim 1 The dependent claims contain further advantageous features.

Die mit der Erfindung hauptsächlich erzielten Vorteile bestehen darin, daß die beiden Reibringe statt mittels einer Verbindung über die Rippen, wie nach dem Hauptpatent, nunmehr alleinig über zylinderförmige Zapfen verbunden werden. Eine Verbindung dieser Zapfen mit den Reibringen erfolgt in bekannter Verfahrensweise beispielsweise in einen Hochvakuumofen oder dergleichen, in der eine unlösbare Verbindung zwischen den Reibringen und den Zapfen hergestellt wird.The main advantages achieved with the invention are that the two friction rings instead of means a connection via the ribs, as after the main patent, now only via cylindrical pins get connected. These pins are connected to the friction rings in a known manner for example in a high vacuum oven or the like, in which an inseparable connection between the Friction rings and the pin is made.

Die Zapfen sind erfindungsgemäß mit einem verdickten Mittelteil und verjüngten Endteilen versehen, die in Bohrungen der beiden Reibringe hineinragen. Diese Zapfen fixieren die beiden Reibringe zueinander. Das verdickte Mittelteil stützt die Reibringe auf einem Absatz ab, so daß sich ein gleicher Luftspalt zwischen den Reibringen bildet. The pins are provided according to the invention with a thickened middle part and tapered end parts protrude into the holes of the two friction rings. These pins fix the two friction rings to each other. The thickened middle part supports the friction rings on a shoulder, so that there is an equal air gap between the Friction rings forms.

Die durchgehenden Rippen der nicht vorveröffentlichten DE-A-44 45 226, welche die Luftkanäle bilden, entfallen, so daß die Abstandsstücke nunmehr an deren Stelle treten. Halbrippen können noch vorgesehen sein.The continuous ribs of the unpublished DE-A-44 45 226, which form the air channels, omitted, so that the spacers now take their place. half ribs can still be provided.

Wahlweise können die Bohrungen zur Aufnahme der Endteile der Abstandsstücke Sackbohrungen oder Durchgangsbohrungen sein, wobei aber auch eine Kombination dieser Bohrungen möglich ist.Optionally, the holes for receiving the end parts of the spacers Blind holes or through holes, but also a combination of these holes is possible.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and is in following described in more detail.

Es zeigen

Fig. 1
einen Schnitt durch eine Bremsscheibe mit zwei Reibringen und Zapfen gemäß Linie I-I der Fig. 2,
Fig. 2
eine Draufsicht auf eine Bremsscheibe mit Aufnahmebohrungen für die Zapfen und Durchgangsbohrungen in den Reibringen und
Fig. 3
einen Schnitt durch die Reibringe der Bremsscheibe mit kombinierter Anordnung von Aufnahmebohrungen als Sacklöcher oder als Durchgangsbohrungen.
Show it
Fig. 1
3 shows a section through a brake disc with two friction rings and pegs according to line II of FIG. 2,
Fig. 2
a plan view of a brake disc with mounting holes for the pin and through holes in the friction rings and
Fig. 3
a section through the friction rings of the brake disc with a combined arrangement of receiving holes as blind holes or as through holes.

Eine innenbelüftete Bremsscheibe 1 umfaßt zwei Reibringe 2, 3 und einen Topf. Die Reibringe 2, 3 weisen durchgehende Bohrungen 7 auf.An internally ventilated brake disc 1 comprises two friction rings 2, 3 and a pot. The Friction rings 2, 3 have through holes 7.

Eine Verbindung der beiden Reibringen 2, 3 erfolgt über Zapfen 30 und/oder 30a. Diese sind vorzugsweise zylinderförmig ausgeführt und weisen ein verdicktes Mittelteil 31 und Endteile 32; 32a auf, die gegenüber dem Mittelteil 31 im Durchmesser kleiner ausgebildet sind.The two friction rings 2, 3 are connected via pins 30 and / or 30a. These are preferably cylindrical and have a thickened central part 31 and end parts 32; 32a, which are smaller in diameter than the central part 31 are trained.

Die Endteile 32 ragen in Bohrungen der Reibringe 2, 3, die als Sackbohrungen 35 oder als Durchgangsbohrungen 34 ausgeführt sein können. Es kann auch eine Kombination von Sackbohrungen 35 und Durchgangsbohrungen 34 gewählt werden, was beispielsweise in Fig. 3 näher dargestellt ist.The end parts 32 protrude into bores in the friction rings 2, 3, which act as blind bores 35 or can be designed as through holes 34. It can also be one Combination of blind holes 35 and through holes 34 can be selected, what is shown in more detail in Fig. 3, for example.

Zwischen dem Mittelteil 31 und den Endteilen 32 ist jeweils ein Absatz 33 ausgebildet, auf den sich die Reibringe 2, 3 abstützen können.A shoulder 33 is formed between the middle part 31 and the end parts 32, on which the friction rings 2, 3 can be supported.

Die Zapfen 30, 30a sind in der Weise in der Bremsscheibe 1 plaziert, daß sich quasi radial verlaufende Kanäle ergeben, die von dem Mittelteil 31 der Zapfen 30 markiert werden.The pins 30, 30a are placed in the brake disc 1 in such a way that there is virtually result in radially extending channels marked by the central part 31 of the pin 30 become.

Zum Verbinden der beiden Reibringe 2, 3 miteinander werden diese über die Zapfen 30, 30a zusammengesetzt bzw. gesteckt und dann in einem Hochvakuumofen durch Klebung oder dergleichen miteinander verbunden.To connect the two friction rings 2, 3 to one another, they are connected via the pins 30, 30a assembled or inserted and then in a high vacuum oven Adhesive or the like connected together.

Zusätzlich zu den Zapfen 30, 30a können die Reibringe 2, 3 innenseitig jeweils noch Halbrippen 40 aufweisen, die je nach den Erfordernissen hinsichtlich Festigkeit, Schwingungsverhalten plaziert sein können.In addition to the pins 30, 30a, the friction rings 2, 3 can also be on the inside Have half ribs 40 which, depending on the requirements with regard to strength, Vibration behavior can be placed.

Claims (8)

  1. Brake disk for disk brakes of vehicles comprising a material of the carbon group, characterized in that the brake disk is formed as a ventilated brake disk of two individual friction rings (2, 3) which are undetachably connected with one another, wherein the two friction rings are connected with one another by way of pins (30; 30a) which have a thickened center part (31) and have set-off end parts (32; 32a).
  2. Brake disk according to claim 1, characterized in that the end parts (32; 32a) each project into respective bores (34, 35) of the two friction rings (2, 3) and the thickened center part (31) forms a support by way of steps (33), with a precise spacing between with the two friction rings (2, 3).
  3. Brake disk according to claim 1 or 2, characterized in that the bores (35) consist of pocket bores in both friction rings (2, 3) for receiving the end parts (32a) of the respective pins (30a).
  4. Brake disk according to claim 1 or 2, characterized in that the respective bores (34) for receiving the end parts (32) of the respective pins (30) consist of through-bores in both friction rings (2, 3).
  5. Brake disk according anyone of the proceeding claims, characterized in that the friction rings (2, 3) have a combination of through-bores (34) and pocket bores (35) for receiving respective end parts (32, 32a) of the pins (30, 30a).
  6. Brake disk according to one of claims 1 to 5, characterized in that additional through-bores (7) are provided.
  7. Brake disk according to claim 6, characterized in that the pins (30) are arranged approximately at the same distance from through-bores (7) in the friction rings (2, 3).
  8. Brake disk according anyone of the claims 1 to 7, characterized in that the pins (30; 30a) are connected with the both friction rings (2, 3) by gluing in a high vacuum furnace.
EP96117044A 1995-11-24 1996-10-24 Brake disc Expired - Lifetime EP0777061B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19543799 1995-11-24
DE19543799A DE19543799A1 (en) 1994-12-17 1995-11-24 Brake disc for vehicle

Publications (2)

Publication Number Publication Date
EP0777061A1 EP0777061A1 (en) 1997-06-04
EP0777061B1 true EP0777061B1 (en) 2003-11-26

Family

ID=7778300

Family Applications (2)

Application Number Title Priority Date Filing Date
EP96117044A Expired - Lifetime EP0777061B1 (en) 1995-11-24 1996-10-24 Brake disc
EP96939910A Expired - Lifetime EP0862703B1 (en) 1995-11-24 1996-11-22 Friction unit

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP96939910A Expired - Lifetime EP0862703B1 (en) 1995-11-24 1996-11-22 Friction unit

Country Status (7)

Country Link
US (2) US6334515B1 (en)
EP (2) EP0777061B1 (en)
JP (2) JP4053622B2 (en)
CN (1) CN1152679A (en)
DE (1) DE19681009D2 (en)
ES (1) ES2211928T3 (en)
WO (1) WO1997020152A1 (en)

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EP0419684A4 (en) * 1989-04-04 1991-10-02 Zaporozh Avtomobil Friction element of a friction pair
DE4027677C2 (en) 1990-08-31 1994-02-17 Bayerische Motoren Werke Ag Brake disc for disc brakes in motor vehicles
DE4322231C2 (en) * 1993-07-03 2002-12-05 Zf Sachs Ag Carbon fiber friction lamella
US5613578A (en) 1993-12-21 1997-03-25 Aircraft Braking Systems Corporation Phase change brake disks
DE4417813A1 (en) 1994-05-20 1995-11-23 Knorr Bremse Systeme Wheel brake disc for rail vehicles
DE4438455C1 (en) 1994-10-28 1996-05-02 Deutsche Forsch Luft Raumfahrt Process for producing a friction unit by infiltration of a porous carbon body with liquid silicon
DE4438456C2 (en) 1994-10-28 2002-07-11 Deutsch Zentr Luft & Raumfahrt Friction unit
DE4445226A1 (en) 1994-12-17 1996-06-20 Porsche Ag Brake discs for disc brakes

Also Published As

Publication number Publication date
CN1152679A (en) 1997-06-25
EP0862703A1 (en) 1998-09-09
EP0862703B1 (en) 2001-02-28
WO1997020152A1 (en) 1997-06-05
ES2211928T3 (en) 2004-07-16
JP3720372B2 (en) 2005-11-24
US6334515B1 (en) 2002-01-01
DE19681009D2 (en) 1999-03-11
EP0777061A1 (en) 1997-06-04
US6193027B1 (en) 2001-02-27
JP4053622B2 (en) 2008-02-27
JPH09166167A (en) 1997-06-24
JP2002502480A (en) 2002-01-22

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